EP 3949791 A1 20220209 - BIODEGRADABLE HOOK-TYPE MOLDED SURFACE FASTENER WITH OUTSTANDING MOLDABILITY
Title (en)
BIODEGRADABLE HOOK-TYPE MOLDED SURFACE FASTENER WITH OUTSTANDING MOLDABILITY
Title (de)
BIOABBAUBARER, HAKENARTIGER GEGOSSENER OBERFLÄCHENBEFESTIGER MIT HERVORRAGENDER FORMBARKEIT
Title (fr)
ÉLÉMENT DE FIXATION DE SURFACE MOULÉE DE TYPE CROCHET BIODÉGRADABLE AYANT UNE APTITUDE AU MOULAGE REMARQUABLE
Publication
Application
Priority
- JP 2019062679 A 20190328
- JP 2020013591 W 20200326
Abstract (en)
A molded hook surface fastener having a base plate and a large number of hook engaging elements projecting from a surface of the base plate, wherein both the base plate and the hook engaging elements is made of a resin mixture comprising polybutylene succinate (A) as a continuous phase and starch (B) as a dispersed phase, and satisfying the following requirements (1) to (3) simultaneously:(1) the dispersed phase comprises polyvinyl alcohol (C);(2) the starch (B) comprises a modified starch, and an amylose content of the starch (B) is 45% by weight or more; and(3) the hook engaging element tapers from a surface of the base plate toward a distal end portion and gradually bends from its middle such that the distal end portion faces a direction slightly approaching the surface of the base plate,is produced without breaking the hook engaging element during the pultrusion molding and is decomposed in the natural environment and does not bring about environmental destruction when discarded.
IPC 8 full level
A44B 18/00 (2006.01); C08L 101/16 (2006.01)
CPC (source: EP US)
A44B 18/0049 (2013.01 - EP US); A44B 18/0061 (2013.01 - EP); B29C 41/26 (2013.01 - US); C08L 67/02 (2013.01 - EP US); C08L 101/16 (2013.01 - EP); B29K 2029/04 (2013.01 - US); B29K 2995/006 (2013.01 - US); B29L 2031/729 (2013.01 - US); C08L 2201/06 (2013.01 - US); C08L 2205/03 (2013.01 - US)
C-Set (source: EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3949791 A1 20220209; EP 3949791 A4 20221214; EP 3949791 B1 20231101; JP 7461339 B2 20240403; JP WO2020196722 A1 20201001; US 11980259 B2 20240514; US 2022175093 A1 20220609; WO 2020196722 A1 20201001
DOCDB simple family (application)
EP 20779978 A 20200326; JP 2020013591 W 20200326; JP 2021509575 A 20200326; US 202017441327 A 20200326